EXHIBIT 12 COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (In Thousands, except ratio) For the six months ended June 30, 1999 1998 - ------------------------------------------------------------------------------------------------------------- EARNINGS Pre-tax income $19,528 $25,516 Fixed charges 6,492 7,900 ---------------------------------------------- Total(a) $26,020 $33,416 ============================================== FIXED CHARGES Interest expense and amortization of debt discount and premium on all indebtedness $6,082 $7,463 Interest portion of rental expense 410 437 ---------------------------------------------- Total fixed charges (b) $6,492 $7,900 ============================================== Ratio of earnings to fixed charges(a)/(b) 4.0x 4.2x ==============================================